Whiteworms (Enchytraeus albidus) are probably one of the most popular form of live food cultured by aquarists. They are highly nutritious and especially valuable for conditioning rainbowfishes before spawning, or for young fast growing fish. Fed two or three times a week; they'll give your fish a nutritional boost. The actions of your fish will change dramatically when they see the movement of live struggling worms in the aquarium. Some aquarists feel that fish fed exclusively on whiteworms become obese due to the fat content of the worms. However, the problem may lie more with overfeeding with the worms, rather that the fat content of the worms. Whiteworms generally contain less than 2.7% body fat in contrast microworms contain 4.8%.
Whiteworm Culture
The secret for successfully raising whiteworms is to understand their particular needs and supply them. Experience has shown that shallow wooden boxes work best. Typical worm boxes are 15 to 60 cm long, 15 to 30 cm wide and no more than 10 to 15 cm deep. The top must cover the box to block out light and keep out predators. Ants, beetles, and other creepy crawlies will feed either on the worms or the food. A secure lid and careful placement of the culture box will prevent such pests. Plastic containers with drainage holes punched in the bottom have been used with success. However, simple boxes made of pine and plywood are generally preferable to plastic, styrofoam, or other materials ...